CN110330909A - A kind of two-sided acrylic protective film and its preparation method and application - Google Patents
A kind of two-sided acrylic protective film and its preparation method and application Download PDFInfo
- Publication number
- CN110330909A CN110330909A CN201910749155.8A CN201910749155A CN110330909A CN 110330909 A CN110330909 A CN 110330909A CN 201910749155 A CN201910749155 A CN 201910749155A CN 110330909 A CN110330909 A CN 110330909A
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- China
- Prior art keywords
- acrylic
- line
- acrylic glue
- pet
- glue
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- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 title claims abstract description 267
- 230000001681 protective effect Effects 0.000 title claims abstract description 92
- 238000002360 preparation method Methods 0.000 title claims abstract description 33
- 239000000463 material Substances 0.000 claims abstract description 75
- 239000003292 glue Substances 0.000 claims abstract description 64
- 238000010438 heat treatment Methods 0.000 claims abstract description 37
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 claims description 24
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 claims description 24
- CIHOLLKRGTVIJN-UHFFFAOYSA-N tert‐butyl hydroperoxide Chemical compound CC(C)(C)OO CIHOLLKRGTVIJN-UHFFFAOYSA-N 0.000 claims description 16
- 239000003795 chemical substances by application Substances 0.000 claims description 12
- 239000002904 solvent Substances 0.000 claims description 12
- 239000004925 Acrylic resin Substances 0.000 claims description 8
- 229920000178 Acrylic resin Polymers 0.000 claims description 8
- 239000004342 Benzoyl peroxide Substances 0.000 claims description 8
- OMPJBNCRMGITSC-UHFFFAOYSA-N Benzoylperoxide Chemical compound C=1C=CC=CC=1C(=O)OOC(=O)C1=CC=CC=C1 OMPJBNCRMGITSC-UHFFFAOYSA-N 0.000 claims description 8
- 235000019400 benzoyl peroxide Nutrition 0.000 claims description 8
- YQHLDYVWEZKEOX-UHFFFAOYSA-N cumene hydroperoxide Chemical compound OOC(C)(C)C1=CC=CC=C1 YQHLDYVWEZKEOX-UHFFFAOYSA-N 0.000 claims description 8
- LLHKCFNBLRBOGN-UHFFFAOYSA-N propylene glycol methyl ether acetate Chemical compound COCC(C)OC(C)=O LLHKCFNBLRBOGN-UHFFFAOYSA-N 0.000 claims description 8
- 239000002216 antistatic agent Substances 0.000 claims description 5
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 abstract description 18
- 239000010703 silicon Substances 0.000 abstract description 18
- 229910052710 silicon Inorganic materials 0.000 abstract description 18
- 238000012546 transfer Methods 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 5
- 239000011248 coating agent Substances 0.000 abstract description 4
- 238000000576 coating method Methods 0.000 abstract description 4
- 239000010410 layer Substances 0.000 description 168
- 238000001723 curing Methods 0.000 description 27
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 15
- 239000000741 silica gel Substances 0.000 description 15
- 229910002027 silica gel Inorganic materials 0.000 description 15
- 239000005341 toughened glass Substances 0.000 description 15
- 238000000034 method Methods 0.000 description 13
- 241000533950 Leucojum Species 0.000 description 8
- 238000011156 evaluation Methods 0.000 description 6
- 238000013022 venting Methods 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000000084 colloidal system Substances 0.000 description 3
- 239000000428 dust Substances 0.000 description 3
- 229920001296 polysiloxane Polymers 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 238000013007 heat curing Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 239000010454 slate Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- 238000005496 tempering Methods 0.000 description 2
- 239000012790 adhesive layer Substances 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J133/00—Adhesives based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Adhesives based on derivatives of such polymers
- C09J133/04—Homopolymers or copolymers of esters
- C09J133/06—Homopolymers or copolymers of esters of esters containing only carbon, hydrogen and oxygen, the oxygen atom being present only as part of the carboxyl radical
- C09J133/10—Homopolymers or copolymers of methacrylic acid esters
- C09J133/12—Homopolymers or copolymers of methyl methacrylate
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J7/00—Adhesives in the form of films or foils
- C09J7/20—Adhesives in the form of films or foils characterised by their carriers
- C09J7/22—Plastics; Metallised plastics
- C09J7/25—Plastics; Metallised plastics based on macromolecular compounds obtained otherwise than by reactions involving only carbon-to-carbon unsaturated bonds
- C09J7/255—Polyesters
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J7/00—Adhesives in the form of films or foils
- C09J7/30—Adhesives in the form of films or foils characterised by the adhesive composition
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J7/00—Adhesives in the form of films or foils
- C09J7/40—Adhesives in the form of films or foils characterised by release liners
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2203/00—Applications of adhesives in processes or use of adhesives in the form of films or foils
- C09J2203/318—Applications of adhesives in processes or use of adhesives in the form of films or foils for the production of liquid crystal displays
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2301/00—Additional features of adhesives in the form of films or foils
- C09J2301/10—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet
- C09J2301/12—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet by the arrangement of layers
- C09J2301/124—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet by the arrangement of layers the adhesive layer being present on both sides of the carrier, e.g. double-sided adhesive tape
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2467/00—Presence of polyester
- C09J2467/005—Presence of polyester in the release coating
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2467/00—Presence of polyester
- C09J2467/006—Presence of polyester in the substrate
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Laminated Bodies (AREA)
- Adhesive Tapes (AREA)
Abstract
The present invention relates to a kind of two-sided acrylic protective film and its preparation method and application, the two-sided acrylic protective film includes the PET release film layer successively contacted, the first acrylic glue-line, PET base material layer, the second acrylic glue-line, PET removing film layer.Preparation method are as follows: be respectively coated acrylic glue in the upper and lower surface of PET base material layer; obtain the first acrylic glue-line and the second acrylic glue-line; PET release film and PET stripping film are pasted in the one side that the first acrylic glue-line and the second acrylic glue-line deviate from PET base material layer respectively after being heating and curing, obtains the two-sided acrylic protective film.The protective film has excellent exhaust performance and coating performance, can be effectively reduced electrostatic generation, and avoids silicon transfer bring negative effect in traditional AB glue.
Description
Technical field
The present invention relates to protection technical field of membrane, and in particular to a kind of two-sided acrylic protective film and preparation method thereof and answers
With.
Background technique
Protective film has been applied to the every aspect of life, can be divided into protective film for digital product according to purposes, automobile is protected
Cuticula, household protective film, food fresh keeping protective film etc..Protective film generally all has good adhesiveness, and after use may be used
To be easily peeled off, and each surface will not be made by adhesive contamination.In the production process of protective film, need using some glue
Body, such as acrylic glue, PU glue and silica gel, according to the purposes of protective film and use different colloids, currently, protective film with
PET silicone protective film and PET acrylic protective film are main Types.Tempered glass film aims at protection mobile phone screen and designs
High-tech protective film is that original screen cover can be completely covered, be prevented by the product of protection screen most enhanced protection at present
Outside by the damage of external force, impact absorbency is further increased.
CN205800424U discloses a kind of tempered glass film, including PET release film layer, high viscous acrylic glue-line, transparent
PET base material layer, low viscous layer of silica gel and PET composite film, the PET release film layer, high viscous acrylic glue-line, transparent PET substrate
Layer, low viscous layer of silica gel and PET composite film, which stack gradually, constitutes five multilayer laminated structures.The utility model height glues acrylic glue-line patch
Tempered glass is closed, low viscous layer of silica gel is bonded screen, to play protection screen, pasting performance and prevent using high viscous acrylic glue
Only occur snowflake or concave point problem in use process.But the protective film is easy to produce electrostatic, and silica gel during use
Layer bring silicon transfer phenomena is easily damaged product.
CN205905510U discloses a kind of mobile phone tempering film of efficient protective value, including what is set gradually from top to bottom
PET protection film layer, ultrawhite toughened glass layer, the first EVA layer, silicon crystal slate layer, the second EVA layer and TPT backsheet layer, PET protection film
Connected by adhesive between layer, ultrawhite toughened glass layer, the first EVA layer, silicon crystal slate layer, the second EVA layer and TPT backsheet layer
Connect, the utility model in wider temperature range have excellent physical mechanical property, have good buffering, antidetonation, every
The advantages that hot, moisture-proof, resist chemical.The protective film not can avoid electrostatic and silicon transfer bring negative effect yet.
CN106626623A discloses a kind of tempered glass protective film of explosion-proof stamping resistance, including coated glue layer, exhaust silicon
Glue-line, conductive silicon glue-line, heat conduction silicone, eyeshield layer, waterproof layer and explosion-proof layer, the outer rim of each layer are bonded in by adhesive layer
Together.The tempered glass protective film of the explosion-proof stamping resistance can prevent this anti-by setting conductive silicon glue-line and heat conduction silicone
The tempered glass protective film of quick-fried stamping resistance is easy that dust is brought to the surface of glass panel because of the static reason of itself, improves electricity
The clarity of sub- product image.But a disadvantage is that not can avoid electrostatic and silicon transfer bring negative effect.
Therefore, developing one kind can be effectively reduced electrostatic generation, and no silicon transfer phenomena can preferably protect product,
And the protective film that venting quality is good, stickiness is good is significantly.
Summary of the invention
In view of the deficiencies of the prior art, the purpose of the present invention is to provide a kind of two-sided acrylic protective film and its preparation sides
Method and application.
In order to achieve that object of the invention, the invention adopts the following technical scheme:
On the one hand, the present invention relates to a kind of two-sided acrylic protective film, the two-sided acrylic protective film includes successively connecing
The PET release film layer of touching, the first acrylic glue-line, PET base material layer, the second acrylic glue-line, PET remove film layer.
Two-sided acrylic protective film of the present invention does not contain silica gel, and no silicon transfer phenomena can avoid being turned by silicon
Bring damage of product risk is moved, meanwhile, which can be effectively reduced electrostatic generation, reduce dust in the viscous of product surface
It is attached.In addition, the second acrylic glue-line performance of the protective film is similar to silica gel, it may have excellent exhaust performance and stickiness
Energy.
Preferably, the peeling force of the first acrylic glue-line be 500-900gf/25mm, such as 500gf/25mm,
550gf/25mm、600gf/25mm、650gf/25mm、680gf/25mm、700gf/25mm、750gf/25mm、800gf/25mm、
850gf/25mm or 900gf/25mm etc..
Preferably, the peeling force of the second acrylic glue-line is 1-3gf/25mm, such as 1gf/25mm, 1.2gf/
25mm, 1.5gf/25mm, 1.8gf/25mm, 2gf/25mm, 2.2gf/25mm, 2.5gf/25mm, 2.8gf/25mm or 3gf/
25mm etc..
The specific selection of the peeling force of the first acrylic glue-line is within the scope of 500-900gf/25mm, if more than 900gf/
25mm can make to occur being difficult to do over again at lower one of production process (fitting tempered glass) first, and colloid easily remains in tempering
The problem of glass surface, is substantially reduced protective film deflation rate when being bonded screen secondly, peeling force crosses conference；If too late
500gf/25mm will lead to product in use for some time, colloid obscission occurs, to can not continue to use.
The specific selection of the peeling force of second acrylic glue-line is within the scope of 1-3gf/25mm, if can make more than 3gf/25mm
Product deflation rate when being bonded screen is substantially reduced, or even the phenomenon that not being vented occurs, next makes stripping film be difficult to tear
Even there is anti-release phenomenon；Will lead to product not as good as 1gf/25mm can not be bonded when being bonded electronic product screen.
Preferably, the first acrylic glue-line with a thickness of 30-50 μm, such as 30 μm, 32 μm, 35 μm, 37 μm, 40 μ
M, 42 μm, 44 μm, 46 μm, 48 μm or 50 μm etc., preferably 40-50 μm.
Preferably, the second acrylic glue-line with a thickness of 20-30 μm, such as 20 μm, 21 μm, 22 μm, 23 μm, 24 μ
M, 25 μm, 26 μm, 27 μm, 28 μm or 30 μm etc., preferably 25-30 μm.
Preferably, the PET base material layer with a thickness of 25-100 μm, such as 25 μm, 30 μm, 35 μm, 40 μm, 45 μm, 50 μ
M, 55 μm, 60 μm, 70 μm, 80 μm, 90 μm or 100 μm etc..
The thickness of the thickness of the first acrylic glue-line and the second acrylic glue-line selects in above-mentioned numberical range,
It can guarantee the stickiness that product has had, prevent product from snowflake occur in fitting.
Preferably, the component of the first acrylic glue-line includes acrylic resin, curing agent and solvent.
Preferably, the curing agent includes in benzoyl peroxide, cumyl hydroperoxide or tert-butyl hydroperoxide
Any one or at least two combination, described at least two combination such as benzoyl peroxide and cumyl hydroperoxide
Combination, the combination of cumyl hydroperoxide and tert-butyl hydroperoxide, the combination of benzoyl peroxide and tert-butyl hydroperoxide
Deng any other combination is not just presented one by one herein.
Preferably, the solvent include in propylene glycol methyl ether acetate, ethyl acetate or toluene any one or at least
Two kinds of combination, the described at least two combination combination of such as propylene glycol methyl ether acetate and ethyl acetate, ethyl acetate and
Combination, propylene glycol methyl ether acetate and combination of toluene of toluene etc., any other combination is not just presented one by one herein.
Preferably, the mass ratio of the acrylic resin, curing agent and solvent is 100:(2-3): (15-25), such as
100:2.4:20、100:2:20、100:3:20、100:2.4:15、100:2.4:25、100:2:15、100:2:25、100:3:
15,100:3:25,100:2.4:18 or 100:2.4:22 etc..
Preferably, the component of the first acrylic glue-line further includes antistatic agent.
Preferably, the component of the second acrylic glue-line includes acrylic resin, curing agent and solvent.
Preferably, the curing agent includes in benzoyl peroxide, cumyl hydroperoxide or tert-butyl hydroperoxide
Any one or at least two combination, described at least two combination such as benzoyl peroxide and cumyl hydroperoxide
Combination, the combination of cumyl hydroperoxide and tert-butyl hydroperoxide, the combination of benzoyl peroxide and tert-butyl hydroperoxide
Deng any other combination is not just presented one by one herein.
Preferably, the solvent include in propylene glycol methyl ether acetate, ethyl acetate or toluene any one or at least
Two kinds of combination, the described at least two combination combination of such as propylene glycol methyl ether acetate and ethyl acetate, ethyl acetate and
Combination, propylene glycol methyl ether acetate and combination of toluene of toluene etc., any other combination is not just presented one by one herein.
Preferably, the mass ratio of the acrylic resin, curing agent and solvent is 100:(0.4-0.6): (5-15), such as
100:0.5:10、100:0.5:5、100:0.5:15、100:0.4:10、100:0.6:10、100:0.5:8、100:0.5:12、
100:0.4:5,100:0.4:15 or 100:0.6:15 etc..
Preferably, the component of the second acrylic glue-line further includes antistatic agent.
Antistatic agent is added in the first acrylic glue-line or the second acrylic glue-line can further increase described pair
The antistatic effect of face acrylic protective film.
On the other hand, the present invention provides a kind of preparation method of two-sided acrylic protective film as described above, the preparation
Method are as follows: be respectively coated acrylic glue in the upper and lower surface of PET base material layer, obtain the first acrylic glue-line and the second acrylic glue
Layer pastes PET in the one side that the first acrylic glue-line and the second acrylic glue-line deviate from PET base material layer respectively after being heating and curing
Release film and PET stripping film obtain the two-sided acrylic protective film.
Preferably, the preparation method specifically comprises the following steps:
(1) it is coated with the first acrylic glue in a side surface of PET base material layer, obtains the first acrylic glue-line, is heating and curing
PET release film is pasted in the one side in the first acrylic glue-line away from PET base material layer afterwards；
(2) it is coated with the second acrylic glue in another side surface of PET base material layer, obtains the second acrylic glue-line, heating is solid
PET stripping film is pasted in one side after change in the second acrylic glue-line away from PET base material layer, obtains the two-sided acrylic protection
Film.
Preferably, step (1) temperature being heating and curing is 150-160 DEG C, such as 150 DEG C, 152 DEG C, 154 DEG C, 155
DEG C, 156 DEG C, 157 DEG C, 158 DEG C, 159 DEG C or 160 DEG C etc..
Preferably, step (1) time being heating and curing is 1-3min, for example, 1min, 1.2min, 1.5min,
1.8min, 2min, 2.2min, 2.5min, 2.8min or 3min etc..
Preferably, step (2) temperature being heating and curing is 140-150 DEG C, such as 140 DEG C, 142 DEG C, 144 DEG C, 145
DEG C, 146 DEG C, 148 DEG C, 149 DEG C or 150 DEG C etc..
Preferably, step (2) time being heating and curing is 1-3min, for example, 1min, 1.2min, 1.5min,
1.8min, 2min, 2.2min, 2.5min, 2.8min or 3min etc..
Preferably, the preparation method specifically comprises the following steps:
(1) it is coated with the second acrylic glue in a side surface of PET base material layer, obtains the second acrylic glue-line, is heating and curing
PET stripping film is pasted in the one side in the second acrylic glue-line away from PET base material layer afterwards；
(2) it is coated with the first acrylic glue in another side surface of PET base material layer, obtains the first acrylic glue-line, heating is solid
PET release film is pasted in one side after change in the first acrylic glue-line away from PET base material layer, obtains the two-sided acrylic protection
Film.
Preferably, step (1) temperature being heating and curing is 150-160 DEG C, such as 150 DEG C, 152 DEG C, 154 DEG C, 155
DEG C, 156 DEG C, 157 DEG C, 158 DEG C, 159 DEG C or 160 DEG C etc..
Preferably, step (1) time being heating and curing is 1-3min, for example, 1min, 1.2min, 1.5min,
1.8min, 2min, 2.2min, 2.5min, 2.8min or 3min etc..
Preferably, step (2) temperature being heating and curing is 140-150 DEG C, such as 140 DEG C, 142 DEG C, 144 DEG C, 145
DEG C, 146 DEG C, 148 DEG C, 149 DEG C or 150 DEG C etc..
Preferably, step (2) time being heating and curing is 1-3min, for example, 1min, 1.2min, 1.5min,
1.8min, 2min, 2.2min, 2.5min, 2.8min or 3min etc..
The preparation of the two-sided acrylic protective film can be divided into two ways: one is the first acrylic glue-line is first obtained,
The second acrylic glue-line is obtained again, and the first acrylic glue-line undergoes heat curing process twice；The second is first obtaining second sub- gram
Power glue-line, then the first acrylic glue-line is obtained, the second acrylic glue-line undergoes heat curing process twice；The first preparation method
Obtained protective film its exhaust performance more preferably because glue-line peeling force has obviously when the second acrylic glue-line undergoes secondary thermosetting
Variation, can generally become larger, to be unable to control data, cause fitting exhaust poor.
In another aspect, the present invention provides a kind of two-sided acrylic protective film as described above answering in mobile phone fitting protection
With.
When the two-sided acrylic protective film be applied to mobile phone tempered glass protection in when, the second acrylic glue-line with
Mobile phone screen fitting, the first acrylic glue-line are bonded with tempered glass.
Compared with the existing technology, the invention has the following advantages:
Two-sided acrylic protective film of the present invention does not contain silica gel, and no silicon transfer phenomena can avoid being turned by silicon
Bring damage of product risk is moved, meanwhile, which can be effectively reduced electrostatic generation, reduce dust in the viscous of product surface
Attached, moment dyestripping voltage is in 0.02KV and following.In addition, the peeling force of the second acrylic glue-line of the protective film is relatively low,
And stable processing technique glue surface is smooth, therefore has excellent exhaust performance, the thickness of the first acrylic glue-line of the protective film
It is thicker, glue-line is soft, and stable processing technique glue surface is smooth, therefore also has excellent coating performance, no snowflake or only fragmentary
Snowflake.
Detailed description of the invention
Fig. 1 is the schematic diagram of two-sided acrylic protective film of the present invention.
In figure: 1 be PET release film layer, 2 be the first acrylic glue-line, 3 be PET base material layer, 4 be the second acrylic glue-line,
5 remove film layer for PET.
Specific embodiment
The technical scheme of the invention is further explained by means of specific implementation.Those skilled in the art should be bright
, the described embodiments are merely helpful in understanding the present invention, should not be regarded as a specific limitation of the invention.
Embodiment 1
The present embodiment provides a kind of two-sided acrylic protective film, the two-sided acrylic protective film includes successively contacting
PET release film layer, the first acrylic glue-line, PET base material layer, the second acrylic glue-line, PET remove film layer.First acrylic glue
The peeling force of layer and the second acrylic glue-line is respectively 700gf/25mm and 2gf/25mm, PET release film layer, the first acrylic glue
The thickness that layer, PET base material layer, the second acrylic glue-line and PET remove film layer is respectively 36 μm, 40 μm, 36 μm, 25 μm, 50 μm.
Preparation method are as follows:
(1) it is coated with the first acrylic glue with comma scraper in a side surface of PET base material layer, obtains the first acrylic glue
Layer, PET release film is pasted in the one side after the 2min that is heating and curing at 155 DEG C in the first acrylic glue-line away from PET base material layer；
(2) it is coated with the second acrylic glue with comma scraper in another side surface of PET base material layer, obtains the second acrylic glue
Layer, PET stripping film is pasted in the one side after the 1min that is heating and curing at 150 DEG C in the second acrylic glue-line away from PET base material layer,
Obtain the two-sided acrylic protective film.
Embodiment 2
The present embodiment provides a kind of two-sided acrylic protective film, the two-sided acrylic protective film includes successively contacting
PET release film layer, the first acrylic glue-line, PET base material layer, the second acrylic glue-line, PET remove film layer.First acrylic glue
The peeling force of layer and the second acrylic glue-line is respectively 500gf/25mm and 3gf/25mm, PET release film layer, the first acrylic glue
The thickness that layer, PET base material layer, the second acrylic glue-line and PET remove film layer is respectively 36 μm, 30 μm, 25 μm, 20 μm, 50 μm.
Preparation method are as follows:
(1) it is coated with the first acrylic glue with comma scraper in a side surface of PET base material layer, obtains the first acrylic glue
Layer, PET release film is pasted in the one side after the 1min that is heating and curing at 160 DEG C in the first acrylic glue-line away from PET base material layer；
(2) it is coated with the second acrylic glue with comma scraper in another side surface of PET base material layer, obtains the second acrylic glue
Layer, PET stripping film is pasted in the one side after the 1min that is heating and curing at 140 DEG C in the second acrylic glue-line away from PET base material layer
Layer, obtains the two-sided acrylic protective film.
Embodiment 3
The present embodiment provides a kind of two-sided acrylic protective film, the two-sided acrylic protective film includes successively contacting
PET release film layer, the first acrylic glue-line, PET base material layer, the second acrylic glue-line, PET remove film layer.First acrylic glue
The peeling force of layer and the second acrylic glue-line is respectively 900gf/25mm and 1gf/25mm, PET release film layer, the first acrylic glue
The thickness that layer, PET base material layer, the second acrylic glue-line and PET remove film layer is respectively 36 μm, 50 μm, 50 μm, 30 μm, 50 μm.
Preparation method are as follows:
(1) it is coated with the first acrylic glue with comma scraper in a side surface of PET base material layer, obtains the first acrylic glue
Layer, PET release film is pasted in the one side after the 2min that is heating and curing at 150 DEG C in the first acrylic glue-line away from PET base material layer；
(2) it is coated with the second acrylic glue with comma scraper in another side surface of PET base material layer, obtains the second acrylic glue
Layer, PET removing is pasted in the one side after the 1.5min that is heating and curing at 140 DEG C in the second acrylic glue-line away from PET base material layer
Film obtains the two-sided acrylic protective film.
Embodiment 4
The present embodiment provides a kind of two-sided acrylic protective film, the two-sided acrylic protective film includes successively contacting
PET release film layer, the first acrylic glue-line, PET base material layer, the second acrylic glue-line, PET remove film layer.First acrylic glue
The peeling force of layer and the second acrylic glue-line is respectively 1100gf/25mm and 2gf/25mm, PET release film layer, the first acrylic
The thickness that glue-line, PET base material layer, the second acrylic glue-line and PET remove film layer is respectively 36 μm, 40 μm, 36 μm, 25 μm, 50 μ
m。
Preparation method is same as Example 1.
Embodiment 5
The present embodiment provides a kind of two-sided acrylic protective film, the two-sided acrylic protective film includes successively contacting
PET release film layer, the first acrylic glue-line, PET base material layer, the second acrylic glue-line, PET remove film layer.First acrylic glue
The peeling force of layer and the second acrylic glue-line is respectively 300gf/25mm and 2gf/25mm, PET release film layer, the first acrylic glue
The thickness that layer, PET base material layer, the second acrylic glue-line and PET remove film layer is respectively 36 μm, 40 μm, 36 μm, 25 μm, 50 μm.
Preparation method is same as Example 1.
Embodiment 6
The present embodiment provides a kind of two-sided acrylic protective film, the two-sided acrylic protective film includes successively contacting
PET release film layer, the first acrylic glue-line, PET base material layer, the second acrylic glue-line, PET remove film layer.First acrylic glue
The peeling force of layer and the second acrylic glue-line is respectively 700gf/25mm and 5gf/25mm, PET release film layer, the first acrylic glue
The thickness that layer, PET base material layer, the second acrylic glue-line and PET remove film layer is respectively 36 μm, 40 μm, 36 μm, 25 μm, 50 μm.
Preparation method is same as Example 1.
Embodiment 7
The present embodiment provides a kind of two-sided acrylic protective film, the two-sided acrylic protective film includes successively contacting
PET release film layer, the first acrylic glue-line, PET base material layer, the second acrylic glue-line, PET remove film layer.First acrylic glue
The peeling force of layer and the second acrylic glue-line is respectively 700gf/25mm and 0.5gf/25mm, PET release film layer, the first acrylic
The thickness that glue-line, PET base material layer, the second acrylic glue-line and PET remove film layer is respectively 36 μm, 40 μm, 36 μm, 25 μm, 50 μ
m。
Preparation method is same as Example 1.
Embodiment 8
The present embodiment provides a kind of two-sided acrylic protective film, the two-sided acrylic protective film includes successively contacting
PET release film layer, the first acrylic glue-line, PET base material layer, the second acrylic glue-line, PET remove film layer.First acrylic glue
The peeling force of layer and the second acrylic glue-line is respectively 700gf/25mm and 2gf/25mm, PET release film layer, the first acrylic glue
The thickness that layer, PET base material layer, the second acrylic glue-line and PET remove film layer is respectively 36 μm, 40 μm, 36 μm, 40 μm, 50 μm.
Preparation method is same as Example 1.
Embodiment 9
The present embodiment provides a kind of two-sided acrylic protective film, the two-sided acrylic protective film includes successively contacting
PET release film layer, the first acrylic glue-line, PET base material layer, the second acrylic glue-line, PET remove film layer.First acrylic glue
The peeling force of layer and the second acrylic glue-line is respectively 700gf/25mm and 2gf/25mm, PET release film layer, the first acrylic glue
The thickness that layer, PET base material layer, the second acrylic glue-line and PET remove film layer is respectively 36 μm, 40 μm, 36 μm, 10 μm, 50 μm.
Preparation method is same as Example 1.
Embodiment 10
The present embodiment provides a kind of two-sided acrylic protective film, the two-sided acrylic protective film includes successively contacting
PET release film layer, the first acrylic glue-line, PET base material layer, the second acrylic glue-line, PET remove film layer.First acrylic glue
The peeling force of layer and the second acrylic glue-line is respectively 700gf/25mm and 2gf/25mm, PET release film layer, the first acrylic glue
The thickness that layer, PET base material layer, the second acrylic glue-line and PET remove film layer is respectively 36 μm, 25 μm, 36 μm, 25 μm, 50 μm.
Preparation method is same as Example 1.
Embodiment 11
The present embodiment provides a kind of two-sided acrylic protective film, the two-sided acrylic protective film includes successively contacting
PET release film layer, the first acrylic glue-line, PET base material layer, the second acrylic glue-line, PET remove film layer.First acrylic glue
The peeling force of layer and the second acrylic glue-line is respectively 700gf/25mm and 2gf/25mm, PET release film layer, the first acrylic glue
The thickness that layer, PET base material layer, the second acrylic glue-line and PET remove film layer is respectively 36 μm, 60 μm, 36 μm, 25 μm, 50 μm.
Preparation method is same as Example 1.
Embodiment 12
The present embodiment provides a kind of two-sided acrylic protective film, the two-sided acrylic protective film includes successively contacting
PET release film layer, the first acrylic glue-line, PET base material layer, the second acrylic glue-line, PET remove film layer.First acrylic glue
The peeling force of layer and the second acrylic glue-line is respectively 700gf/25mm and 2gf/25mm, PET release film layer, the first acrylic glue
The thickness that layer, PET base material layer, the second acrylic glue-line and PET remove film layer is respectively 36 μm, 40 μm, 36 μm, 25 μm, 50 μm.
Preparation method are as follows:
(1) it is coated with the second acrylic glue with comma scraper in a side surface of PET base material layer, obtains the second acrylic glue
Layer, PET stripping film is pasted in the one side after the 1min that is heating and curing at 155 DEG C in the second acrylic glue-line away from PET base material layer；
(2) it is coated with the first acrylic glue with comma scraper in another side surface of PET base material layer, obtains the first acrylic glue
Layer, PET release film is pasted in the one side after the 1min that is heating and curing at 150 DEG C in the first acrylic glue-line away from PET base material layer,
Obtain the two-sided acrylic protective film.
Comparative example 1
The present embodiment provides a kind of protective film, the protective film includes the PET release film layer successively contacted, acrylic glue
Layer, PET base material layer, layer of silica gel, PET remove film layer.The peeling force of acrylic glue-line and layer of silica gel be respectively 700gf/25mm and
The thickness that 2gf/25mm, PET release film layer, acrylic glue-line, PET base material layer, layer of silica gel and PET remove film layer is respectively 36 μ
m、40μm、36μm、25μm、50μm。
Preparation method are as follows:
(1) be coated with silica gel with comma scraper in a side surface of PET base material layer, after the 1min that is heating and curing at 155 DEG C
Acrylic glue-line pastes PET stripping film in the one side of PET base material layer；
(2) it is coated with acrylic glue with comma scraper in another side surface of PET base material layer, be heating and curing at 150 DEG C
PET release film is pasted in one side after 1min in layer of silica gel away from PET base material layer, obtains the protective film.
Following benchmark test is carried out respectively to protective film made from embodiment 1-12 and comparative example 1:
(1) exhaust performance is evaluated, method particularly includes: tempered glass uses 340 μm of tempered glass of IPhone 8, and fitting is true
Machine screen records the time drained gas with stopwatch.
(2) coating performance is evaluated, method particularly includes: tempered glass uses 340 μm of tempered glass of IPhone 8, and fitting is true
There is situation in machine screen, observation snowflake.
(3) silicon mobility self-evaluation, method particularly includes: the silica gel face of product or the second acrylic glue-line are bonded prototype screen,
Double 85 test 168h are carried out in constant temperature and humidity machine, protective film of tearing sees screen mist degree.
(4) antistatic adsorption capacity evaluation, method particularly includes: the silica gel face of product or the second acrylic glue-line are bonded true
Machine screen tests moment dyestripping voltage using hand-held electrostatic tester.
The various performance parameters of protective film made from embodiment 1-12 and comparative example 1 are as shown in table 1:
Table 1
From 1 data of table: two-sided acrylic protective film according to the present invention can be avoided without silicon transfer phenomena by silicon
Bring damage of product risk is shifted, can be effectively reduced electrostatic generation, and there is excellent exhaust performance and coating performance.By
The evaluation result of embodiment 4-7 is it is found that the peeling force of the first acrylic glue-line and the second acrylic glue-line will affect the patch of product
Conjunction property and venting quality；If the peeling force of the first acrylic glue-line is excessive, so that exhaust is slow when product is bonded；If the second acrylic
The peeling force of glue-line is excessive, and stripping film difficulty can be made to tear, and anti-release phenomenon occurs；If the peeling force mistake of the first acrylic glue-line
It is small, so that product fitting snowflake is serious；If the peeling force of the second acrylic glue-line is too small, the even hardly possible so that product stickiness is deteriorated
With fitting.
By the evaluation result of embodiment 8-11 it is found that the thickness of the first acrylic glue-line and the second acrylic glue-line also can shadow
Ring the stickiness and venting quality of product；If the thickness of the first acrylic glue-line is blocked up, on the performance of product substantially without influence, but make
Make increased costs；If the thickness of the second acrylic glue-line is blocked up, so that peeling force can be bigger than normal, the exhaust performance of product is influenced；If
The thickness of first acrylic glue-line is excessively thin, so that product fitting snowflake is serious；If the thickness of the second acrylic glue-line is excessively thin, so that
It is serious that product is bonded snowflake.
By the evaluation result of embodiment 12 it is found that production technique according to the present invention also has the venting quality of product
It influences, if first make the second acrylic glue-line makes the first acrylic glue-line again, the venting quality of product can slightly be deteriorated, and product
Stripping film dyestripping power weight.By the evaluation result of comparative example 1 it is found that according to traditional AB glue manufacture craft, there are silicon to shift band
The negative effect come, and antistatic adsorption capacity is deteriorated.
The Applicant declares that the present invention is explained by the above embodiments two-sided acrylic protective film and its preparation of the invention
Methods and applications, but the present invention is not limited to the above embodiments, that is, does not mean that the present invention must rely on above-described embodiment
It can implement.It should be clear to those skilled in the art, any improvement in the present invention, to each raw material of product of the present invention
Addition, selection of concrete mode of equivalence replacement and auxiliary element etc., all fall within protection scope of the present invention and the open scope it
It is interior.
The preferred embodiment of the present invention has been described above in detail, still, during present invention is not limited to the embodiments described above
Detail within the scope of the technical concept of the present invention can be with various simple variants of the technical solution of the present invention are made, this
A little simple variants all belong to the scope of protection of the present invention.
It is further to note that specific technical features described in the above specific embodiments, in not lance
In the case where shield, can be combined in any appropriate way, in order to avoid unnecessary repetition, the present invention to it is various can
No further explanation will be given for the combination of energy.
Claims (10)
1. a kind of two-sided acrylic protective film, which is characterized in that the two-sided acrylic protective film include the PET that successively contacts from
Type film layer, the first acrylic glue-line, PET base material layer, the second acrylic glue-line, PET remove film layer.
2. two-sided acrylic protective film as described in claim 1, which is characterized in that the peeling force of the first acrylic glue-line
For 500-900gf/25mm；
Preferably, the peeling force of the second acrylic glue-line is 1-3gf/25mm.
3. two-sided acrylic protective film as claimed in claim 1 or 2, which is characterized in that the thickness of the first acrylic glue-line
Degree is 30-50 μm, preferably 40-50 μm；
Preferably, the second acrylic glue-line with a thickness of 20-30 μm, preferably 25-30 μm；
Preferably, the PET base material layer with a thickness of 25-100 μm.
4. two-sided acrylic protective film as claimed in any one of claims 1-3, which is characterized in that the first acrylic glue
The component of layer includes acrylic resin, curing agent and solvent；
Preferably, the curing agent includes any in benzoyl peroxide, cumyl hydroperoxide or tert-butyl hydroperoxide
It is a kind of or at least two combination；
Preferably, the solvent includes any one in propylene glycol methyl ether acetate, ethyl acetate or toluene or at least two
Combination；
Preferably, the mass ratio of the acrylic resin, curing agent and solvent is 100:(2-3): (15-25)；
Preferably, the component of the first acrylic glue-line further includes antistatic agent.
5. such as two-sided acrylic protective film of any of claims 1-4, which is characterized in that the second acrylic glue
The component of layer includes acrylic resin, curing agent and solvent；
Preferably, the curing agent includes any in benzoyl peroxide, cumyl hydroperoxide or tert-butyl hydroperoxide
It is a kind of or at least two combination；
Preferably, the solvent includes any one in propylene glycol methyl ether acetate, ethyl acetate or toluene or at least two
Combination；
Preferably, the mass ratio of the acrylic resin, curing agent and solvent is 100:(0.4-0.6): (5-15)；
Preferably, the component of the second acrylic glue-line further includes antistatic agent.
6. the preparation method of two-sided acrylic protective film according to any one of claims 1 to 5, which is characterized in that the system
Preparation Method are as follows: be respectively coated acrylic glue in the upper and lower surface of PET base material layer, obtain the first acrylic glue-line and the second acrylic
Glue-line pastes in the one side that the first acrylic glue-line and the second acrylic glue-line deviate from PET base material layer respectively after being heating and curing
PET release film and PET stripping film obtain the two-sided acrylic protective film.
7. the preparation method of two-sided acrylic protective film as claimed in claim 6, which is characterized in that the preparation method is specific
Include the following steps:
(1) PET base material layer a side surface be coated with the first acrylic glue, obtain the first acrylic glue-line, after being heating and curing
First acrylic glue-line pastes PET release film in the one side of PET base material layer；
(2) it is coated with the second acrylic glue in another side surface of PET base material layer, the second acrylic glue-line is obtained, after being heating and curing
PET stripping film is pasted in one side of the second acrylic glue-line away from PET base material layer, obtains the two-sided acrylic protective film.
8. the preparation method of two-sided acrylic protective film as claimed in claim 7, which is characterized in that step (1) described heating
Cured temperature is 150-160 DEG C；
Preferably, step (1) time being heating and curing is 1-3min；
Preferably, step (2) temperature being heating and curing is 140-150 DEG C；
Preferably, step (2) time being heating and curing is 1-3min.
9. the preparation method of two-sided acrylic protective film as claimed in claim 6, which is characterized in that the preparation method is specific
Include the following steps:
(1) PET base material layer a side surface be coated with the second acrylic glue, obtain the second acrylic glue-line, after being heating and curing
Second acrylic glue-line pastes PET stripping film in the one side of PET base material layer；
(2) it is coated with the first acrylic glue in another side surface of PET base material layer, the first acrylic glue-line is obtained, after being heating and curing
PET release film is pasted in one side of the first acrylic glue-line away from PET base material layer, obtains the two-sided acrylic protective film；
Preferably, step (1) temperature being heating and curing is 150-160 DEG C；
Preferably, step (1) time being heating and curing is 1-3min；
Preferably, step (2) temperature being heating and curing is 140-150 DEG C；
Preferably, step (2) time being heating and curing is 1-3min.
10. application of the two-sided acrylic protective film according to any one of claims 1 to 5 in mobile phone fitting protection.
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| KR20100118430A (en) * | 2009-04-28 | 2010-11-05 | 율촌화학 주식회사 | Double-faced adhesive film without base |
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